Don't worry to much about the brand of PCV. While you are changing it, inspect the PCV hose and grommet carefully. If they are soft or cracked, you need to get them replaced. If your Kragen store does not have them, go to a NAPA.
As for plugs, I would go with the standard replacement plug, which is Motorcraft brand. I think the originals were platinum tip.
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Peace, it's our only chance
1998 E150 Club Wagon, 4.6L Modular, E4OD
2007 Milan. 3.0L Duratec, Aisin 6 speed AW-F21
others I look out for
2007 Escape 2wd (the mini Pumpkin), 3.0L Duratec, CD4E
2008 Mazda3 5 door, 2.3L, 5 speed manual
My advice is worth every cent you pay for it ! | 
